﻿<p>A mechanical fasteners connecting building elements mechanically.  A single instance of this class may represent one or many of actual mechanical fasteners, for example an array of bolts or a row of nails.</p>

<blockquote class="history">
HISTORY&nbsp; New entity in IFC2x2
</blockquote>

<blockquote class="change-ifc2x4">
IFC4 CHANGE&nbsp; Supertype changed from <em>IfcFastener</em> to <em>IfcElementComponent</em>. Attribute <em>PredefinedType</em> added. Attributes <em>NominalDiameter</em> and <em>NominalLength</em> are deprecated.
</blockquote>
